#511C64#511C64

#511C64 is a dark, vivid purple. Relative luminance 0.035; OKLCH L 34.3% C 0.127 H 315.8°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#511C64
RGB	rgb(81, 28, 100)
HSL	hsl(284, 56%, 25%)
HSV	hsv(284, 72%, 39%)
CMYK	cmyk(19%, 72%, 0%, 60.8%)
CIE-LAB	lab(21.95, 36.72, -31.54)
CIE-LCH	lch(21.95, 48.41, 319.34°)
OKLab	oklab(34.32% 0.0911 -0.0887)
OKLCH	oklch(34.32% 0.127 315.8)
XYZ	xyz(6.1085, 3.5002, 12.4079)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Plum Purple

#4E0550

ΔE00 5.00

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C64 #2F641C

analogous

#2D1C64 #511C64 #641C53

triadic

#511C64 #64511C #1C6451

tetradic

#511C64 #642D1C #2F641C #1C5364

square

#511C64 #642D1C #2F641C #1C5364

split-complementary

#511C64 #53641C #1C642D

monochromatic

#130718 #2A0F34 #511C64 #782994 #9E37C4

Accessibility & contrast

On white

12.35

#511C64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#511C64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C64

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C64	#FFFFFF	#000000	##FFFFFF
##511C64	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003166

Deuteranopia (green-blind)

#1B3662

Tritanopia (blue-blind)

#502A3D

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #511c64;
/* rgb */ color: rgb(81, 28, 100);
/* oklch */ color: oklch(34.3% 0.127 315.8);

Tailwind

colors: {
  custom: {
    50: '#855d91',
    500: '#511c64',
    950: '#000000',
  },
}

SCSS

$custom: #511c64;
$custom-light: #855d91;
$custom-dark: #000000;

JSON

{
  "hex": "#511c64",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 100
  },
  "hsl": {
    "h": 284.167,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34315,
    "c": 0.1271,
    "h": 315.8
  },
  "luminance": 0.035
}

Semantic roles & 50–950 ramp

primary

#511C64

secondary

#599943

accent

#E04870

background

#F8F5F8

surface

#EFE9F0

border

#CAC5CB

text

#0B040C

muted

#7C797D

Preview Lab

Preview with #511C64

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →